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PROPERTIES OF MATTER Physical and Chemical.

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Presentation on theme: "PROPERTIES OF MATTER Physical and Chemical."— Presentation transcript:

1 PROPERTIES OF MATTER Physical and Chemical

2 All substances have properties that we can use to identify them.
For example we can identify a person by their face, their voice, height, finger prints, DNA etc. The more of these properties that we can identify, the better we know the person.

3 In a similar way, matter has properties - and there are many of them.
There are two basic types of properties that we can associate with matter. These properties are called Physical properties and Chemical properties:

4 What is a PHYSICAL PROPERTY of matter?

5 PHYSICAL PROPERTY Characteristic that can be observed without changing the identity of the substance. Properties that do not change the chemical nature of matter.

6 PHYSICAL PROPERTY Examples: Color Shape Texture Size Taste Odor Length

7 TAKE SOME NOTES…

8 Mass and Volume Mass: the amount of matter in an object/substance
g, kg Volume: The amount of space an object takes up mL or cm3

9 TAKE SOME NOTES…

10 Density the amount of matter in a certain amount of space;
D= mass/volume; (g/cm3 or g/mL)

11 TAKE SOME NOTES…

12 ELASTICITY “stretchy-ness” the ability to return to original shape

13 ABSORBENCY Ability of a substance to “soak up” a liquid

14 TAKE SOME NOTES…

15 CONDUCTIVITY The ability of a substance to allow energy to flow through it; “conductor” or “insulator”

16 STATE OF MATTER @ room temperature

17 SPECIAL TEMPS MELTING POINT FREEZING POINT BOILING POINT
CONDENSING POINT

18 TAKE SOME NOTES…

19 LUSTER “shininess” Substances can be described as Shiny or Dull

20 MALLEABILITY Malleable means that a substance is bendable
Malleable substances can be shaped and used for tools

21 BRITTLENESS Beakable, crumbles

22 TAKE SOME NOTES…

23 What is a CHEMICAL PROPERTY of matter?

24 CHEMICAL PROPERTY Characteristics that describe how substances can form new substances. Characteristics that can ONLY be observed while the substances changes to a new substance.

25 COMBUSTIBILITY/ FLAMMABILITY
describes how well a substance can burn

26 OXIDATION: REACTS WITH OXYGEN
Iron rusts – forms orange substance. Silver tarnishes – forms dark gray substance. Copper – forms blue/green substance.

27

28 TAKE SOME NOTES…

29 pH: Acid or Base Acid=Vinegar Ammonia=Base pH test is orange/red
pH test is blue/purple

30 REACTIVITY Reaction with acid? Reaction with H2O?
Baking soda + vinegar Reaction with H2O? Sodium + water

31 TAKE SOME NOTES…

32 What do we use properties of matter for?
To identify substances To compare substances To tell one substance from another


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